Morning
Just wanting to know what people run the above lamps on if you don’t have the correct gear for them. Uk based
Thanks
your best bet is to use a 35/55W SOX choke ballast (35W for the 45W SO/H-SOI/H and 55W for the 60W SO/H-SOI/H) if you have one of those, since a 35W SOX and 55W SOX has very similar running-characteristics to a 45W and 60W SO/H or SOI/H

*but* the 85W SO/H and SOI/H despite being the same physical size as a 55W SOX lamp, must be run on a suitable leak transformer ballast, its arc voltage is too high for 240V Mains choke operation